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Selective lysis of the autologous tumor by delta TCS1+ gamma/delta+ tumor-infiltrating lymphocytes from human lung carcinomas.
- Source :
-
European journal of immunology [Eur J Immunol] 1990 Dec; Vol. 20 (12), pp. 2685-9. - Publication Year :
- 1990
-
Abstract
- Two distinct non-overlapping populations of TcR1+ (gamma/delta) T cells have been described: the first, bearing the disulfide-linked gamma/delta heterodimer, is predominant in the peripheral blood; the second, expressing the non-disulfide-linked form of TcR1, is mostly confined to epithelial tissues (lung, gut, skin). TcR1+ lymphocytes may be cytotoxic and could be involved in anti-tumor immunity, especially against tumors at epithelial sites. Freshly derived tumor-infiltrating lymphocytes (TIL) obtained from two patients with lung cancer were enriched in CD3+WT31- cells. The percentage of this subset substantially increased upon culture in the presence of interleukin 2. These cells were TcR1+ as demonstrated by immunofluorescence and immunoprecipitation. In one case only 40% of this population reacted with delta TCS1 mAb, that recognizes the non-disulfide-linked form of TcR1, and co-expressed the CD8 antigen. Cultured TcR1+ TIL were able to kill fresh autologous tumor cells, K-562 and, to a lesser extent, some natural killer-resistant cell lines and allogeneic lung tumor cells in 4-h 51Cr-release cytotoxicity assays. The fractionated delta TCS1+ TIL lysed only autologous tumor cells and K-562, whereas the lytic activity against all the other targets was confined to the delta TCS1- subset. Moreover, the autotumor cytotoxicity was inhibited by anti-HLA class I but not by anti-CD1c or anti-LFA-1 mAb, suggesting that killing of the autologous tumor cells and non-major histocompatibility complex-restricted cytotoxicity are mediated by different mechanisms.
- Subjects :
- Antibodies, Monoclonal
Antigens, CD analysis
Antigens, CD1
Antigens, Differentiation immunology
Cell Line
Cytotoxicity, Immunologic
Histocompatibility Antigens Class I immunology
Humans
Immunity, Cellular
In Vitro Techniques
Precipitin Tests
Receptors, Antigen, T-Cell classification
Carcinoma immunology
Lung Neoplasms immunology
Lymphocytes, Tumor-Infiltrating immunology
Receptors, Antigen, T-Cell immunology
T-Lymphocyte Subsets immunology
Subjects
Details
- Language :
- English
- ISSN :
- 0014-2980
- Volume :
- 20
- Issue :
- 12
- Database :
- MEDLINE
- Journal :
- European journal of immunology
- Publication Type :
- Academic Journal
- Accession number :
- 1702723
- Full Text :
- https://doi.org/10.1002/eji.1830201224